Search a number
-
+
144492768 = 2533723413
BaseRepresentation
bin10001001110011…
…00100011100000
3101001212222211000
420213030203200
5243442232033
622200552000
73403111500
oct1047144340
9331788730
10144492768
1174620612
1240482600
1323c212a4
1415293a00
15ca42a13
hex89cc8e0

144492768 has 144 divisors (see below), whose sum is σ = 490386960. Its totient is φ = 41271552.

The previous prime is 144492757. The next prime is 144492779. The reversal of 144492768 is 867294441.

144492768 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144492757) and next prime (144492779).

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40630 + ... + 44042.

It is an arithmetic number, because the mean of its divisors is an integer number (3405465).

Almost surely, 2144492768 is an apocalyptic number.

144492768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144492768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245193480).

144492768 is an abundant number, since it is smaller than the sum of its proper divisors (345894192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144492768 is a wasteful number, since it uses less digits than its factorization.

144492768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446 (or 3425 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 144492768 is about 12020.5144648638. The cubic root of 144492768 is about 524.7454766254.

The spelling of 144492768 in words is "one hundred forty-four million, four hundred ninety-two thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 72 84 96 98 108 112 126 144 147 168 189 196 216 224 252 288 294 336 378 392 432 441 504 588 672 756 784 864 882 1008 1176 1323 1512 1568 1764 2016 2352 2646 3024 3413 3528 4704 5292 6048 6826 7056 10239 10584 13652 14112 20478 21168 23891 27304 30717 40956 42336 47782 54608 61434 71673 81912 92151 95564 109216 122868 143346 163824 167237 184302 191128 215019 245736 286692 327648 334474 368604 382256 430038 491472 501711 573384 645057 668948 737208 764512 860076 982944 1003422 1146768 1290114 1337896 1474416 1505133 1720152 2006844 2293536 2580228 2675792 2948832 3010266 3440304 4013688 4515399 5160456 5351584 6020532 6880608 8027376 9030798 10320912 12041064 16054752 18061596 20641824 24082128 36123192 48164256 72246384 144492768